Data Lake Showdown: Object Store or HDFS?

The explosion of data is causing people to rethink their long-term storage strategies. Most agree that distributed systems, one way or another, will be involved. But when it comes down to picking the distributed system–be it a file-based system like ...

Altiscale Hadoop-as-a-Service Delivers Apache Hive 0.13

Altiscale, Inc., a leading innovator in Hadoop-as-a-Service (HaaS) solutions, has announced the availability of Apache Hiveâ„¢ 0.13 on its HaaS platform, just weeks since its general software release to the industry. For data scientists and businesses that rely on insights ...

How-to Implement Role-based Security in Impala using Apache Sentry

Apache Sentry (incubating) is the Apache Hadoop ecosystem tool for role-based access control (RBAC). In this how-to, I will demonstrate how to implement Sentry for RBAC in Impala. I feel this introduction is best motivated by a use case. Data warehouse ...

MongoDB NoSQL Database Interview Questions

MongoDB is the best free open source NoSQL document oriented database. If you are preparing for the technical interview on MongoDB NoSQL database, must prepare the following MongoDB NoSQL database interview questions. These MongoDB NoSQL database interview questions cover basic ...